Kojic acid and glutathione soaps are skincare products designed to brighten the skin, even out skin tone, and reduce the appearance of dark spots and hyperpigmentation. They combine kojic acid, which inhibits melanin production, with glutathione, a powerful antioxidant that helps improve skin radiance and protect against free radicals. These soaps are used on both the face and body for a cleaner, smoother, and more youthful-looking complexion.